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CVE-2026-101047GHSA-q9c5-pp7m-fm2gGO-2026-6268

Fleet before 4.87.0 Unauthenticated iOS App Download via Predictable URLs

fleetdm fleetGoLibraries & packages
Open in ThreatlineRecord JSON
CVSS
6.9Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.24%Chance of exploitation activity in the next 30 days, higher than 14% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in4.87.0Fixed versionCVE List
Published27 Sep 2026Updated 30 Sep 2026CVE List

What fixes it

  • 4.87.0fleetCVE List
  • 4.87.0github.com/fleetdm/fleet/v4, GoOSVgo get github.com/fleetdm/fleet/v4@v4.87.0

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Fleet before 4.87.0 does not protect the two endpoints that serve in-house iOS application packages and manifests (enterprise tier only) with the intended random, time-limited URL token. Because Apple's InstallEnterpriseApplication MDM command requires these URLs to be reachable without a Fleet session, they cannot rely on session-based authentication, and the missing token allows an unauthenticated attacker with network access to the Fleet server to download in-house IPA binaries and their metadata (bundle identifier, version, and name) by guessing sequential title identifiers. The impact is limited to read-only disclosure; there is no privilege escalation or write access, and the free tier is unaffected (it returns fleet.ErrMissingLicense).

Text from CVE List

Affected versions 3

  • fleetaffected: all versions before 4.87.0CVE List
  • fleetunaffected: 4.87.0CVE List
  • github.com/fleetdm/fleet/v4, Gofrom first release, fixed in 4.87.0OSV

References 2